A great way to sow different seed varieties in a small space! These heavy duty semi-rigid black germination trays with 20 distinct rows allow you to easily sow and label up to 20 varieties in one tray. Separate rows also reduce potential disease spread, and ease transplanting. Simply lift out each row of seedlings as they reach transplanting size. The 20 row germination trays measure 11" wide x 21-3/4" long x 1-1/2" deep, and are sturdy enough to wash and re-use.